<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片式图 -->
        <el-card class="box-card">
            <!-- 搜索与添加区域 -->
            <el-row :gutter="30">
                <el-col :span="10">
                    <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable
                        @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>

            <!-- 用户列表区域 -->
            <el-table :data="userlist" stripe border>
                <el-table-column type="index" label="-">
                </el-table-column>
                <el-table-column label="姓名" prop="username">
                </el-table-column>
                <el-table-column label="邮箱" prop="email">
                </el-table-column>
                <el-table-column label="电话" prop="mobile">
                </el-table-column>
                <el-table-column label="角色" prop="role_name">
                </el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)">
                        </el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini"
                            @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 为按钮设置鼠标悬停提示 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top-start">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)">
                            </el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页功能 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加用户的对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" :close-on-click-modal="false"
            @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 对话框的按钮底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" :close-on-click-modal="false"
            @close="editDialogClosed">
            <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色的对话框 -->
        <el-dialog title="提示" :visible.sync="setRoleDialogVisible" width="50%" 
        :close-on-click-modal="false" @close="setRoleDialogClosed">
            <div>
                <p>当前的用户:{{ userInfo.username }}</p>
                <p>当前的角色:{{ userInfo.role_name }}</p>
                <p>分配新角色:
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>


    </div>
</template>

<script>
export default {
    name: '',
    data() {
        return {
            // 获取用户列表的参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 2,
            },
            userlist: [],
            total: 0,
            // 控制对话框的显示与隐藏
            addDialogVisible: false,
            editDialogVisible: false,
            // 添加用户的表单数据
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: '',
            },
            // 添加表单的用户验证规则对象
            addFormRules: {
                username: [{
                    required: true, message: '请输入用户名', trigger: 'blur'
                }, {
                    min: 3, max: 15, message: '用户名在3-15个字符之间', trigger: 'blur'
                }],
                password: [{
                    required: true, message: '请输入用户密码', trigger: 'blur'
                }, {
                    min: 3, max: 15, message: '用户密码在3-15个字符之间', trigger: 'blur'
                }],
                email: [{
                    required: true, message: '请输入用户邮箱', trigger: 'blur'
                }, {
                    pattern: /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/, message: '请输入正确的邮箱', trigger: 'blur'
                }],
                mobile: [{
                    required: true, message: '请输入手机号', trigger: 'blur'
                }, {
                    pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号', trigger: 'blur'
                }]
            },
            // 保存查询到的用户对象
            editForm: {},
            editFormRules: {
                email: [{
                    required: true, message: '请输入用户邮箱', trigger: 'blur'
                }, {
                    pattern: /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/, message: '请输入正确的邮箱', trigger: 'blur'
                }],
                mobile: [{
                    required: true, message: '请输入手机号', trigger: 'blur'
                }, {
                    pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号', trigger: 'blur'
                }]
            },
            setRoleDialogVisible: false,
            // 要被分配角色的用户
            userInfo: {},
            // 所有的角色数据列表
            rolesList: [],
            selectedRoleId:'',
            
        };
    },
    created() {
        this.getUserList()
    },
    methods: {
        // 发送请求获取用户列表
        async getUserList() {
            const { data: res } = await this.$http.get('users', { params: this.queryInfo })
            if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
            this.userlist = res.data.users
            this.total = res.data.total
            console.log(this.userlist)
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听switch开关改变
        async userStateChanged(userinfo) {
            const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if (res.meta.status !== 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('用户状态更改失败')
            }
            this.$message.success('用户状态更新成功')
        },
        // 监听添加用户对话框的关闭
        addDialogClosed() {
            this.$refs.addFormRef.resetFields()
        },
        addUser() {
            this.$refs.addFormRef.validate(async valid => {
                if (!valid) return
                // 预校验通过发起请求
                const { data: res } = await this.$http.post('/users', this.addForm)
                if (res.meta.status !== 201) {
                    this.$message.error('添加用户失败！')
                }
                this.$message.success('添加用户成功！')
                this.addDialogVisible = false
                // 刷新用户列表
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id) {
            const { data: res } = await this.$http.get('users/' + id)
            if (res.meta.status !== 200) {
                return this.$message.error('查询用户信息失败')
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件(重置校验效果)
        editDialogClosed() {
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo() {
            this.$refs.editFormRef.validate(async valid => {
                if (!valid) return
                // 发起修改用户信息的请求
                const { data: res } = await this.$http.put('users/' + this.editForm.id, {
                    email: this.editForm.email, mobile: this.editForm.mobile
                })
                if (res.meta.status !== 200) {
                    return this.$message.error('修改用户信息失败')
                }
                this.editDialogVisible = false
                this.getUserList()
                this.$message.success('更新用户信息成功')
            })
        },
        // 根据id删除用户
        async removeUserById(id) {
            const confirmResult = await this.$confirm('确认删除此用户吗?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            // 确认返回值为字符串 confirm
            // 取消返回字符串 cancel
            if (confirmResult !== 'confirm') {
                return this.$message.info('已取消删除')
            }
            const { data: res } = await this.$http.delete('users/' + id)
            if (res.meta.status !== 200) {
                return this.$message.error('删除用户失败')
            }
            this.$message.success('用户删除成功')
            this.getUserList()
        },
        async setRole(userInfo) {
            this.userInfo = userInfo
            // 在展示对话框之前展示所有角色列表
            const { data: res } = await this.$http.get('roles')
            if (res.meta.status !== 200) return this.$message.error('角色列表获取失败')

            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
         async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,
            {rid: this.selectedRoleId})
            if(res.meta.status !== 200) return this.$message.error('更新角色失败')
            this.$message.success('更新角色成功')
            this.getUserList()

            this.setRoleDialogVisible = false
        },
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    },
}

</script>
<style lang='less' scoped>
</style>